In rounds two and three, Rose has not fared well on the front nine, but has caught fire on the back. He probably needs to be under par on the front nine, then take advantage of the par-5s on the back to have a shot.

There's always a chance, but in 79 Masters, there have only been a handful of folks who have shot 63. Tiger and Rory will probably need 61 or 62. Tall order.

Does Spieth hold on to win the coveted green jacket?

This is his second Masters and the second time he's playing in the final group. That says something about his talent, but even more about his intestinal fortitude. If he plays the front nine under par, he should have enough with the par-5s on the back to hold on and get that green jacket.